Patents by Inventor Claus Schmitges

Claus Schmitges has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 2,1,3-benzothia(OXA)diazole derivatives having an endothelin receptor antagonistic effect
    Patent number: 6017939
    Abstract: The invention concerns compounds of formula (I),in which R is (i), (ii) or (iii); n is 0, 1 or 2; X means O or S; and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have different meanings, or a cyclized tautomeric shape. The invention also concerns the (E) isomers and salts of these compounds which display endothelin receptor antagonistic properties.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: January 25, 2000
    Assignee: Merck Patent Gesellschaft
    Inventors: Dieter Dorsch, Mathias Osswald, Werner Mederski, Claudia Wilm, Claus Schmitges, Maria Christadler, Soheila Anzali
  • Endothelin receptor antagonists
    Patent number: 5726194
    Abstract: Novel compounds of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, --A.dbd.B--C.dbd.D--, Ar and X have the meaning indicated in claim 1, and their salts show endothelin receptor-antagonistic properties.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: March 10, 1998
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Mathias Osswald, Werner Mederski, Dieter Dorsch, Claudia Wilm, Claus Schmitges, Maria Christadler
  • Diamino acid derivatives
    Patent number: 4746649
    Abstract: New diamino acid derivatives of the formula IX--Z--NH--CH(CH.sub.2 R.sup.1)--CH(NH.sub.2)--CH.sub.2 --CO--E--G--Y IwhereinX is H, R.sup.2 --O--C.sub.n H.sub.2n --CO--, R.sup.2 --C.sub.n H.sub.2n --O--CO--, R.sup.2 --C.sub.n H.sub.2n --CO--, R.sup.2 --SO.sub.2, (R.sup.2 --C.sub.n H.sub.2n)--L(R.sup.2 --C.sub.r H.sub.2r)--C.sub.t H.sub.2t --CO--, H--(NHCH.sub.2 CH.sub.2).sub.n --NH--CH.sub.2 CO-- or 9-fluorenyl--C.sub.n H.sub.2n --O--CO--,Z is 0 to 4 amino acid radicals, bonded to one another in a peptide-like manner, selected from the group consisting of Abu, Ada, Ala, Arg, Dab, Gly, His, Ile, Leu, tert.-Leu, Lys, Met, Nbg, Nle, N-Me-His, N-Me-Phe, Orn, Phe, Pro, Ser, Thr, Tic, Trp, Tyr and Val,R.sup.1 is H, A, cycloalkyl with 3-7 C atoms, Ar or C.sub.p H.sub.2p --W,E is absent or is Ala, Gly, Ile, Leu, tert.-Leu, Met, Ser, Thr or Val,G is absent or is His, Phe, Trp, Tyr or --NH--CH(CH.sub.2 R.sup.1)--CH(NH.sub.2)--CH.sub.2 CO--,Y is --O--C.sub.m H.sub.2m --R.sup.3, --NH--C.sub.m H.sub.2m --R.sup.3, --NH--C.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: May 24, 1988
    Assignee: Merck Patent Gesellschaft mit beschraenkter Haftung
    Inventors: Peter Raddatz, Claus Schmitges
  • Diamino acid derivatives
    Patent number: 4666888
    Abstract: New diamino acid derivatives of the formula IX--Z--NH--CH(CH.sub.2 R.sup.1)--CH(NH.sub.2)--CH.sub.2 --CO--E--G--Y IwhereinX is H, R.sup.2 --O--C.sub.n H.sub.2n --CO--, R.sup.2 --C.sub.n H.sub.2n --O--CO--, R.sup.2 --C.sub.2n --CO--, R.sup.2 --SO.sub.2, (R.sup.2 --C.sub.n H.sub.2n)--L(R.sup.2 --C.sub.r H.sub.2r)--C.sub.t H.sub.2t --CO--, H--(NHCH.sub.2 CH.sub.2).sub.n --NH--CH.sub.2 CO-- or 9-fluorenyl--C.sub.n H.sub.2n --O--CO--,Z is 0 to 4 amino acid radicals, bonded to one another in a peptide-like manner, selected from the group consisting of Abu, Ada, Ala, Arg, Dab, Gly, His, Ile, Leu, tert.-Leu, Lys, Met, Nbg, Nle, N--Me--His, N--Me--Phe, Orn, Phe, Pro, Ser, Thr, Tic, Trp, Tyr and Val,R.sup.1 is H, A, cycloalkyl with 3-7 C atoms, Ar or C.sub.p H.sub.2p --W,E is absent or is Ala, Gly, Ile, Leu, tert.-Leu, Met, Ser, Thr or Val,G is absent or is His, Phe, Trp, Tyr or --NH--CH(CH.sub.2 R.sup.1)--CH(NH.sub.2)--CH.sub.2 CO--,Y is --O--C.sub.m H.sub.2m --R.sup.3, --NH--C.sub.m H.sub.2m --R.sup.3, --NH--C.sub.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: May 19, 1987
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Peter Raddatz, Claus Schmitges